diff options
Diffstat (limited to 'drivers/misc/mei/hw-me.h')
| -rw-r--r-- | drivers/misc/mei/hw-me.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/misc/mei/hw-me.h b/drivers/misc/mei/hw-me.h index a071c645e905..95cf830b7c7b 100644 --- a/drivers/misc/mei/hw-me.h +++ b/drivers/misc/mei/hw-me.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* - * Copyright (c) 2012-2020, Intel Corporation. All rights reserved. + * Copyright (c) 2012-2022, Intel Corporation. All rights reserved. * Intel Management Engine Interface (Intel MEI) Linux driver */ @@ -51,6 +51,9 @@ struct mei_cfg { * @d0i3_supported: di03 support * @hbuf_depth: depth of hardware host/write buffer in slots * @read_fws: read FW status register handler + * @polling_thread: interrupt polling thread + * @wait_active: the polling thread activity wait queue + * @is_active: the device is active */ struct mei_me_hw { const struct mei_cfg *cfg; @@ -60,10 +63,19 @@ struct mei_me_hw { bool d0i3_supported; u8 hbuf_depth; int (*read_fws)(const struct mei_device *dev, int where, u32 *val); + /* polling */ + struct task_struct *polling_thread; + wait_queue_head_t wait_active; + bool is_active; }; #define to_me_hw(dev) (struct mei_me_hw *)((dev)->hw) +static inline bool mei_me_hw_use_polling(const struct mei_me_hw *hw) +{ + return hw->irq < 0; +} + /** * enum mei_cfg_idx - indices to platform specific configurations. * @@ -120,12 +132,13 @@ enum mei_cfg_idx { const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx); struct mei_device *mei_me_dev_init(struct device *parent, - const struct mei_cfg *cfg); + const struct mei_cfg *cfg, bool slow_fw); int mei_me_pg_enter_sync(struct mei_device *dev); int mei_me_pg_exit_sync(struct mei_device *dev); irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id); irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id); +int mei_me_polling_thread(void *_dev); #endif /* _MEI_INTERFACE_H_ */ |